GO, SiO2, and SnO2 nanomaterials as highly efficient adsorbents for Zn2+ from industrial wastewater—A second stage treatment to electrically enhanced membrane bioreactor

Ahmed, Menatalla; Elektorowicz, Maria; Hasan, Shadi W.

doi:10.1016/j.jwpe.2019.100815

Cited by 23 publications

(5 citation statements)

References 50 publications

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“…The presence of Ag, Mn, and Cr metals on the surface of SFPW adsorbent indicates the ability of silica to adsorb heavy metals in wastewater. Consistent with the research conducted by [8]- [9], [19] in which the heavy metals in wastewater could be reduced by silica adsorbent. This result described that the performance of the SFPW adsorbent was relatively good.…”

Section: Surface Morphology Of the Snake Fruit Peel Waste Adsorbentsupporting

confidence: 88%

Performance of the silica adsorbent from snake fruit peel for removing heavy metals of Ag, Cu, Mn, and Cr in SCW

Salamah,

Satar

2024

IJAAS

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Silver crafts wastewater (SCW) typically contains environmentally harmful heavy metals, including Ag, Cu, Mn, and Cr, necessitating treatment before disposal. This study explores a promising solution using silica (SiO2) adsorbents derived from snake fruit peel through acidic activation with HCl concentrations of 2, 4, and 6 M. Qualitative analysis of the adsorbent involved Fourier-transform infrared spectrometer (FTIR) and x-ray fluorescence (XRF) techniques. XRF analysis revealed major compositions of Si (26%) and Cl (71.46%), with minor elements such as Ca (0.91%), P (0.42%), K (0.37%), Fe (0.12%), and others. FTIR analysis indicated the presence of siloxane (Si-O-Si) and silanol (Si-OH) on the adsorbent. The SiO2 adsorbent demonstrated effectiveness in removing heavy metals (Ag, Cu, Mn, and Cr) from SCW, achieving removal percentages of approximately 16.96%, 24.38%, 19.34%, and 9.82%, respectively. This research contributes to the development of an environmentally friendly approach for SCW treatment using silica adsorbents derived from agricultural waste.

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Section: Surface Morphology Of the Snake Fruit Peel Waste Adsorbentsupporting

confidence: 88%

Performance of the silica adsorbent from snake fruit peel for removing heavy metals of Ag, Cu, Mn, and Cr in SCW

Salamah,

Satar

2024

IJAAS

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“…The unique characteristic peaks of the cellulose membrane are summarized in Table . The IR spectra of the cellulose/GONS membranes revealed new peaks at 1645 cm −1 which is attributed to the (H‐O‐H) bending mode . Furthermore, the peaks at 1730 cm −1 and 1040 cm −1 , which are clear in all cellulose/GONS membranes, correspond to the CO and CO carbonyl stretching present in the GONSs .…”

Section: Resultsmentioning

confidence: 89%

“…The IR spectra of the cellulose/GONS membranes revealed new peaks at 1645 cm −1 which is attributed to the (H-O-H) bending mode. 36 Furthermore, the peaks at 1730 cm −1 and 1040 cm −1 , which are clear in all cellulose/GONS membranes, correspond to the C O and C O carbonyl stretching present in the GONSs. 37 The intensity of the -OH peak at 3000-3700 cm -1 was reduced in the cellulose/GONS membranes due to the thermal treatment of the membranes.…”

Section: Resultsmentioning

confidence: 91%

Surface modification of anti‐fouling novel cellulose/graphene oxide (GO) nanosheets (NS) microfiltration membranes for seawater desalination applications

Ibrahim

Banat

Yousef

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND Reverse osmosis (RO) is becoming the predominant technology for the future of desalinated of seawater. Nonetheless, operational challenges such as membrane biofouling in RO desalination plants result in membrane deterioration and high energy costs. In this regard, pre‐treatment technologies, such as microfiltration (MF) membranes, are proven to reduce the impact of membrane biofouling in RO systems. Hence, surface modifications of commercial cellulose MF membranes with graphene oxide nanosheets (GONSs) at different concentrations were carried out in this research study. The new membranes were characterized by scanning electron microscopy (SEM) and Raman spectroscopy amongst other methods of analysis. A continuous cross‐flow MF system was used to investigate the performance of the new cellulose/GONS membranes with regards to total bacteria count (TBC) removal, water flux, and biofouling resistance. RESULTS TBC removal efficiency of 93.6 ± 2.4% and 27.4 ± 12.5% was achieved using the new cellulose/GONS membranes and control pristine cellulose membranes, respectively. This higher removal efficiency was achieved at a water flux of 334.7 ± 10.4 L/(m2 h). Furthermore, a dramatic 55% increase in the transmembrane pressure (TMP) of the pristine cellulose membrane was observed after 24 h operation compared to only a 6% increase in the newly fabricated cellulose/GONS membranes, reflecting their strong anti‐fouling properties. CONCLUSION Surface modification of MF membranes with anti‐fouling nanomaterials such as GONS has the potential to be implemented in the pretreatment of seawater to improve the RO performance and lower the energy consumption. © 2020 Society of Chemical Industry

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“…Surface modification ( Figure 3 ) with different functional groups could result in the surface charge of the membranes (carbon nanotubes, graphene oxide, etc. ), which would immensely increase the adsorption capacities [ 172 , 173 ].…”

Section: Role Of Adsorptive Nanocomposite Membranes In Heavy Metal Re...mentioning

confidence: 99%

Recent Advances in Adsorptive Nanocomposite Membranes for Heavy Metals Ion Removal from Contaminated Water: A Comprehensive Review

Damiri

Andra²,

Kommineni

et al. 2022

Materials

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Water contamination is one of the most urgent concerns confronting the world today. Heavy metal poisoning of aquatic systems has piqued the interest of various researchers due to the high toxicity and carcinogenic consequences it has on living organisms. Due to their exceptional attributes such as strong reactivity, huge surface area, and outstanding mechanical properties, nanomaterials are being produced and employed in water treatment. In this review, recent advances in the use of nanomaterials in nanoadsorptive membrane systems for wastewater treatment and heavy metal removal are extensively discussed. These materials include carbon-based nanostructures, metal nanoparticles, metal oxide nanoparticles, nanocomposites, and layered double hydroxide-based compounds. Furthermore, the relevant properties of the nanostructures and the implications on their performance for water treatment and contamination removal are highlighted. The hydrophilicity, pore size, skin thickness, porosity, and surface roughness of these nanostructures can help the water permeability of the nanoadsorptive membrane. Other properties such as surface charge modification and mechanical strength can improve the metal adsorption effectiveness of nanoadsorptive membranes during wastewater treatment. Various nanocomposite membrane fabrication techniques are also reviewed. This study is important because it gives important information on the roles of nanomaterials and nanostructures in heavy metal removal and wastewater treatment.

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GO, SiO2, and SnO2 nanomaterials as highly efficient adsorbents for Zn2+ from industrial wastewater—A second stage treatment to electrically enhanced membrane bioreactor

Cited by 23 publications

References 50 publications

Performance of the silica adsorbent from snake fruit peel for removing heavy metals of Ag, Cu, Mn, and Cr in SCW

Performance of the silica adsorbent from snake fruit peel for removing heavy metals of Ag, Cu, Mn, and Cr in SCW

Surface modification of anti‐fouling novel cellulose/graphene oxide (GO) nanosheets (NS) microfiltration membranes for seawater desalination applications

Recent Advances in Adsorptive Nanocomposite Membranes for Heavy Metals Ion Removal from Contaminated Water: A Comprehensive Review

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